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Working paper

Consistent rewards outperform variable rewards in habit formation

Asaf Mazar, Marissa Sharif, and Angela Duckworth

Two phone feeds show steady likes on one screen and varying likes on the other.

Conventional wisdom suggests that habits form best in response to variable rewards rather than consistent ones. We challenge this view using large scale field data (N > 1M posts) and six pre-registered experiments. In the field and in the lab, consistent rewards promote long-term persistence more effectively than variable rewards. These findings question long-standing assumptions and highlight the role of predictability in habit learning.

Manuscript title: Consistent rewards outperform variable rewards in habit formation.